nvme: quiet user passthrough command errors

nvme: quiet user passthrough command errors

The driver is spamming the kernel logs for entirely harmless errors from
user space submitting unsupported commands. Just silence the errors.
The application has direct access to command status, so there's no need
to log these.

And since every passthrough command now uses the quiet flag, move the
setting to the common initializer.

Signed-off-by: Keith Busch <[email protected]>
Reviewed-by: Alan Adamson <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Reviewed-by: Kanchan Joshi <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Reviewed-by: Daniel Wagner <[email protected]>
Tested-by: Alan Adamson <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>